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EFFECT OF NITROGEN , PHOSPHORUS FERTILIZERS AND PLANTDISTANES ON GROWTH OF Nigella sativa L. | ||
| Mesopotamia Journal of Agriculture | ||
| Article 7, Volume 34, Issue 3, 2006, Pages 17-26 PDF (0 K) | ||
| DOI: 10.33899/magrj.2006.26387 | ||
| Author | ||
| Yousif H. Hammo | ||
| Abstract | ||
| The experiment was carried out in Singar ,Northern of Nineveh Government between the period 2000-2002 to study the effect of three combinations between nitrogen and phosphorus fertilizers at three levels : Low level 160 kg N and 140 kg P2O5 (61.6 kg P ) ha , medium level 200 kg N and 180 kg P2O5 ( 79.2 kg P) and High level 240 kg N and 200 kg P2O5 ( 88.0 kg P ) , with three planting distances between the plants: 15 , 25 and 35 cm by using factorial experiment in complete randomized block design with three replicates . The results have shown a significant increase in plant height , stem diameter , branches number , vegetative dry weight , fruits number , seed production , fixed and volatile oil yield with increasing fertilizer level, while decreasing planting distances from 35 to 15 cm did not decrease vegetative growth characters but increased seed production per area at 113.3% and 130.4 % for two season respectively . On the other hand , using high level of fertilizers and 15 cm planting distance gave higher production of fixed oil 552.2 and 480.3 kg /ha and 13.9 , 11.7 kg /ha of volatile oil for two season respectively . | ||
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